first-hand
adjective
[ ˌfəːstˈhand ]
• coming from the original source or personal experience; gained or learned directly.
• "a first-hand account of life in the trenches in the First World War"
Similar:
direct,
immediate,
personal,
unmediated,
hands-on,
experiential,
empirical,
from the original source,
directly,
immediately,
personally,
at first hand,
with one's own eyes/ears,
first-hand
adverb
• from the original source or personal experience; directly.
• "he knows first-hand how tough the job is"
at first hand
• directly or from personal experience.
• "scientists observed the process at first hand"
